shell online

During work, the puppet server/client certificate authentication exception is often encountered, and the certificate needs to be regenerated. Common operations are to delete the old certificates related to the server/client certificate, and then generate a new certificate. In this case, a shell script is compiled, which only needs to be periodically run on the Client side. Because the script involves the plaintext password, in order to improve securit

During work, the puppet server/client certificate authentication exception is often encountered, and the certificate needs to be regenerated. Common operations are to delete the old certificates related to the server/client certificate, and then generate a new certificate. In this case, a shell script is compiled, which only needs to be periodically run on the Client side. Since the script involves a plaintext password, you can consider encrypting thi

Job Four: Write a script: Implement Ping Class C network segment, Class B network segment and all hosts in Class A network segment; The network segment address lets the user input, moreover uses the script to judge the network segment type; #!/bin/bash #Author: MOS #Script name:funPing.sh #Date time:2012-10-09/21:53:09 #Version: 1.0.1 #Descri Ption: # #定义C类网段处理函数 Net_c () {#定义统计不在线IP数量的变量 declare-i fail=0 #生成C类网的最后位IP, loop ping for I in ' seq 1 254 ';d o #ping只发送一个, just wait 1 seconds, g

Tag: Indicates the return value of the CTR online packet host Images network SRCDetermine which hosts are online in the current network (the ping return value is true, indicating that the host is online)The trap instruction is used to perform the action that will be taken after the command signal is received, and the common use is to complete the cleanup when the

Learn the html5 series ------ Online Offline (online status detection), html5 ------ Online I. Opening Analysis Hi, everybody. I want to thank you for your old age! I met you again, (* ^__ ^ ......, This series of articles mainly focus on Html5-related knowledge points, taking Learning API knowledge points as the entrance and introducing instances from a simple

At work, you sometimes need to compare whether the files are consistent. You can use the following script (relatively simple): share it and hope to help friends who have the same requirements ~ #! /Bin/bash # compare whether files on the server are

A recent project requires a high-availability master-slave synchronization of mysql + keepalived, which is of course easy to configure. However, it is easy to think about how to restore data as quickly as possible after the master database is

Inurl: products. asp? C_id = Injection vulnerability exists in most English En/Index. asp If it doesn't work, it can be injected in transit. Default table segment manager www.2cto.com Default sub-segment managerName managerPassword Default

Online presentation of special effects and Jquery online presentation based on jquery online production PPT Jquery-based PPT online production Online Demo special effect code is a js-based high-end atmosphere on-level slide production special effects. As follows: Download

Git online version and git online version Introduction: I have studied the Git standalone version (individual combat). Today I want to study the Git online version (team collaboration )! GitHub is an open-source code hosting platform. You can share your code on this platform, so that everyone can participate in development or use it. (You can also build your own

Online Library Series 4-Online Playback End Edition 1. Reference The flexpaper player. Introducing the original flexpaper Player file into your project is actually a swf. As a container, we have closed it, I used my icon, my homepage address, but it was not a substantial change. I would like to pay tribute to a master who has excellent technology) and encapsulated the as and style into this swf. I will publ

The most natural learning rule is to use any vector that has the least loss in the past rounds. This is the same spirit as the consistent algorithm, which is commonly referred to as follow-the-leaderin online convex optimization, minimizing cumulative losses.For any t:　　　　　　　　　　　　　We talked about the ability to minimize cumulative losses that cannot be explained by this algorithm in an online learning scena

Before introducing what shell is, let's review the relationship between users and computer systems. We know that computer operations cannot leave hardware, but users cannot directly drive hardware, hardware drivers can only be controlled through a software called "Operating System". In fact, we talk about FreeBSD, NetBSD, OpenBSD, and Linux every day, strictly speaking, it is just an operating system, which is called "core )". However, from the user's

Look at the previous section: Linux Shell Data Redirection (input redirection and output redirection) detailed analysis It is estimated that some friends are dizzy, so complex redirect. This time we'll take a look at the pipe command. Shell pipe, it can be said that the usage is much simpler. The pipe command operator is: "|", which can only handle the correct output information from the previous instruc

First, Shell basic applicationTarget:This case requires familiarity with the characteristics of the Linux shell environment, mainly practicing the following actions:1> switching the user's shell environment2> Practice Command History, command aliases3> REDIRECT standard input/output/error Output4> Pipeline Operation Practicesteps:Step one: Switch the user's

We all know that PHP executes system commands in the following ways: System () outputs and returns the last line of the shell results. EXEC () does not output results, returns the last line of the shell result, and all results can be saved to a returned array. PassThru () only invokes the command and outputs the result of the command directly to the standard output device. These methods will wait for the c

Oracle Online redo log files (online redo log fileAlmost all of the internal changes that occur in Oracle are recorded in the online redo log file, and Oracle uses these redo log groups to recover the database, so they are very important.The main work for online redo log files is:Back up your data,1: Record all data ch

Shell advanced programming video tutorial-follow the old boy step by step to learn Shell advanced programming practical video tutorial, advanced programming shell Shell advanced programming video tutorial-step-by-step learning of Shell Advanced Programming TutorialTutorial i

[Shell programming] 1. Introduction to shell programming and introduction to shell programming Shell itself is a program written in C language. It serves as a bridge for users to use Unix/Linux, and most of their work is done through Shell.

Basic Shell learning and basic Shell LearningShell Shell is a program written in C language, which serves as a bridge between users using Linux. Shell is both a command language and a programming language. Shell is an application that provides an interface through which user